68178011 has 8 divisors (see below), whose sum is σ = 74440704. Its totient is φ = 61926120.

The previous prime is 68177999. The next prime is 68178031. The reversal of 68178011 is 11087186.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68178011 is a prime.

It is a super-2 number, since 2×68178011² = 9296482367832242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68178031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16430 + ... + 20156.

It is an arithmetic number, because the mean of its divisors is an integer number (9305088).

Almost surely, 2^68178011 is an apocalyptic number.

68178011 is a deficient number, since it is larger than the sum of its proper divisors (6262693).

68178011 is a wasteful number, since it uses less digits than its factorization.

68178011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5401.

The product of its (nonzero) digits is 2688, while the sum is 32.

The square root of 68178011 is about 8256.9976989218. The cubic root of 68178011 is about 408.5213662758.

The spelling of 68178011 in words is "sixty-eight million, one hundred seventy-eight thousand, eleven".